DEVELOPMENT SUPPORT DEVICE

The present invention makes efficient development possible by providing a development support device that automatically establishes a network model, messages to be transmitted and received, etc. for acooperative simulation that connects a plurality of development support devices. The present invention is characterized in that: a development support device (2) generates a communication definitionfile (11) in a format that can be read and executed by a development support device (1); and development support device (1) reads the communication definition file (11) and thereby automatically establishes messages to be transmitted and received by development support device (1). 本发明提供一种开发辅助装置，其在连接了多个开发辅助装置的协调模拟中，自动设定网络模型和收发的消息等，能够进行高效率的开发。本发明的开发辅助装置的特征在于：开发辅助装置(2)生成开发辅助装置(1)能够读取和执行的格式的通信定义文件(11)，开发辅助装置(1)读取通信定义文件(11)，由此开发辅助装置(1)自动地设定要收发的消息。